Don't clean up coverage

.travis.yml

@@ -1,4 +1,6 @@
 language: java
+jdk:
+  - openjdk8
 env:
   global:
   - CC_TEST_REPORTER_ID=3f1c0d93a3be444be021f93bdb077079ae9acee47374681435d9292821f4fe0c
@@ -16,7 +18,6 @@ before_script:
 - ".travis/before-script.sh"
 script:
 - mvn test
-after_script:
 - "./cc-test-reporter format-coverage -d -t jacoco ./target/jacoco-ut/jacoco.xml"
 - "./cc-test-reporter upload-coverage -d"
 before_deploy:
@@ -31,6 +32,7 @@ deploy:
     repo: trickl/language
     all_branches: true
 - provider: releases
+  skip_cleanup: true
   api_key:
     secure: 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
   file: "./target/language-$project_version.jar"